Privacy Policy

This privacy policy informs you about data processing when you visit our website or enter into contracts with us. The present privacy policy is updated on a regular basis, in particular if there is any change in data protection legislation.
Your data is processed in accordance with Swiss law. Where necessary, the General Data Protection Regulation of the European Union (GDPR) is also complied with. Insofar as the GDPR applies, your data is processed on the legal basis of Art. 6 para. 1 (a) (consent), (b) (performance of a contract) and (f) (legitimate interests) GDPR.
We only process the personal data of our website visitors and clients to the extent necessary to provide a functional website, our content and our services. As a rule, personal data is only processed after consent has been obtained. An exception applies in cases where it is not possible to obtain prior consent for factual reasons and where processing of the data is permitted by law.


Treu & Co
Vivian Treu
Hegenheimerstrasse 29
4123 Allschwil
Phone: 061 483 09 09

Processing of personal data

Personal data is any information relating to an identified or identifiable person. A data subject is a person whose personal data is processed. Processing includes any handling of personal data, regardless of the means and procedures used, in particular the storage, disclosure, procurement, erasure, storage, modification, destruction and use of personal data.

Type of data collected

We collect personal data if, for example, you provide information for the purpose of concluding a contract or using our services. This also includes the following personal data:

  • Contact details (name, address, e-mail, telephone no. etc.)
  • Information on personal circumstances such as marital status, religious community, etc. (only with prior consent in the context of or for the conclusion of a contractual relationship)
  • Income data (only with prior consent in the context of or for the conclusion of a contractual relationship)
  • Tax and asset data (only with prior consent in the context of or for the conclusion of a contractual relationship)
  • Payment and financial information
  • Customer service information

We process the personal data at the time of collecting it.

Duration of data processing

We process personal data for the duration required for the respective purpose or purposes. Where there are longer-term retention obligations due to legal and other obligations to which we are subject, we restrict processing accordingly.

Disclosure to third parties

If necessary for the performance of the contract or required by law, we disclose or transmit the customer’s data with prior consent in the course of processing contracts, e.g. to financial service providers, credit institutions and investment companies as well as to social insurance institutions, tax authorities, tax consultants, legal advisors, trustees and auditors and property owners.

Data transmission abroad

As a rule, we do not transfer any data abroad in the course of providing contractual services, unless this is necessary to perform the contractually agreed services. If data is transferred abroad, such data is only transferred to countries that have adequate data protection in accordance with the Swiss Data Protection Act (or GDPR).
When using this website, individual personal data might be transferred to third parties and abroad due to cookies or the embedding of third-party services (e.g. Google services or WordPress emojis).


This website only uses purely essential and functional cookies. These are small text files that make it possible to store specific information relating to the user on the user’s end device while he/she is using the website.
Cookies remain stored after the end of a browser session and can be accessed again when the user visits the site again. If you do not wish this to happen, you should set your internet browser to refuse to accept cookies.
We use the “Real Cookie Banner” consent tool to manage the cookies and similar technologies used (tracking pixels, web beacons, etc.) and related consents. Details on the way “Real Cookie Banner” works and processes data can be found here.

SSL/TLS encryption

This website uses SSL/TLS encryption for security reasons and to protect the transmission of confidential content, such as the enquiries you send to us as the website operator. You can recognise an encrypted connection by the fact that the address line of the browser changes from “http://” to “https://” and by the lock symbol in your browser line.
When SSL or TLS encryption is activated, third parties cannot read the data you transmit to us.

Server log files

The provider of our website automatically collects and stores information in what are known as server log files that your browser automatically transmits to us. These are:

  • Browser type and browser version
  • Operating system used
  • Referrer URL
  • Host name of the accessing computer
  • Time of the server enquiry

This data cannot be assigned to any specific person. It is not merged with other data sources. We reserve the right to check this data subsequently if we become aware of specific indications of unlawful use.

Google services

This website uses Google Maps for embedding maps and Google Invisible reCAPTCHA to protect against bots and spam and for Google Fonts.
By embedding Google Maps on our website, we can display interactive maps directly on the website which allows you to conveniently use the map function. When you visit the website, Google receives the information that you have accessed the corresponding subpage of our website. This occurs regardless of whether you have a Google user account or not. If you are logged in to Google, your data will be assigned directly to your account. If you do not wish your data to be assigned to your Google profile, you must log out before activating the button. Google stores your data as usage profiles and uses them for the purposes of advertising, market research and/or customising its website. Such an analysis is carried out in particular (even for users who are not logged in) to provide customised advertising and to inform other users of the social network about your activities on our website. You have the right to object to the creation of these user profiles, although you must contact Google to exercise this right.
Among other things, the services of the US company Google LLC use cookies and, as a result, data might be transferred to Google in the USA, but we assume that no personal tracking takes place in this context solely as a result of using our website.
Google is committed to maintaining an adequate level of data protection in accordance with the US-European and US-Swiss Data Privacy Framework (self-certification programme).
Further information can be found in the Privacy Policy of Google.

WordPress emojis

This site uses WordPress emojis. WordPress emojis are provided by Automattic Inc, USA. The provider can save your IP address in order to transmit the emojis to the browser used.
You can deactivate WordPress emojis; you can find instructions on how to do this here.

Rights of data subjects

As a data subject, you have the following rights in connection with the processing of your data relevant under data protection law:

  • Information as to whether and which of your data we process
  • Correction of your data if it is incorrect
  • Erasure of data
  • Surrender of data in a commonly used electronic format or transfer to another controller
  • Revocation of consent if the processing of your data is based on your consent

If you wish to assert a right, please contact us at the address / e-mail address mentioned at the beginning. We reserve the right to carry out an appropriate identity check before responding to your enquiry.

September 2023